Gauge pin and bar assembly



April 30, 1929. C, H, ALLAN 1,710,853

GAUGE PIN AND BAR ASSEMBLY Filed May l, 192B Patented Apr. 30, 1929.

UNITED STATES CHARLES H. ALLAN, OF RYEGATE, MONTANA.

GAUGE PIN AND mia ASSEMBLY.

Application med may 1, 192s. serial No. 274,278.

The present invention relates to a gauge pin and bar assemblyT in combination with a job press platen, and has for its purpose the provision of extremely simple and accurate means for securing proper register on the tympan. Such an assembly is not new in its broadest aspect and, consequently, the present invention has particular reference to certain improvements in detail.

The invention will he described with reference to the accompanying drawings, Where in:

Figure 1 shows in top plan view a portion of a job press platen with the devices of the present invention mounted thereon.

Figure 2 is a side elevation of a portion of the platen as seen from the bottom of Figure 1.

Figure 3 is an interrupted section of the platen on the line 3-3 of Figure 1.

Figure 4 is a section on the line 4-4 of Figure 1.

Figure 5 is a section `on the line 5 5 of Figure 1, and

Figure 6 is a perspective of a detail.

Referring now to the drawing, 10 repre sents an end portion of a platen to which is pivoted a bail composed of side members 11 and 12 and a connecting member 13. The members 11 and 12 pivot about screws as 14, Figure 2. This bail serves to secure one end of the tympan sheet to the platen in the ordinary manner, but in addition to thi function members 11 and 12 are formed so as to constit-ute guidewa-ys for the transverse bar 15. As may be seen from Figures 2 and 3 in particular, side member 11 is provided with a longitudinal lateral groove 16 and a downwardly open groove 17, and member 12 has similar grooves 13 and 19. Bar 15is composed of au elongated strap-lilre intermediate portion and end portions 2O and 21, which are adapted to engage at their extreme ends with the downwardly open grooves of members 11 and 12. As is most clearly shown in Figure 3, the ends of bar 15 rests on top of the ends of members and `21, so that the intermediate portion of thel bar is spaced above the tympan a distance equal to the thickness ot the said end elements. Element 2() extends somewhat beyond member 20.` and then is bent downwardly, inwardly and up wardly, so that its extreme end 20 engages in groove 17, so as to slide therein. The looped end has secured therein a stiffening block 22 having a fiat face slidable along the lateral face of member 11. The block and the vertical section of element. 20, are provided with a threaded bore in `register with groove 16, and in this bore is threaded a headed screw 23 with a locknut 24. The end of element 21 is looped in the same manner as described in connection with element 20, its extreme u turned end engagin in groove 19 of mem er 12. A similaristi ening block 25 is provided, although in this instance the block has a rib `26 engaging in groove 18. `The top surfaces ofside members 11 and 12 are provided with suitable graduations, and it is obvious that by loosening screw 23, the bar may be slid longitudinally of the guide elements and trued up by reference to the graduations. It can be securely locked in any adj usted position by suitable manipulation of screw 23 and lock-nut 24. Since the end sections of the bar are of strap material, it is essential that seating means in the nature of elements 20 and 17 be provided, since otherwise the straps would yield at the bends upon tightening screw 23.

Slidably mounted on bar 15 are a pair of lower gauge pins 27 and 28, the latter being shown in cross section in Figure 4. Referring to this figure, it will be seen that the pin is composed of an upper plate 29, end blocks 30 and 31 of the same thickness as bar 15,

and lower plates 32 and 33 whose inner edges engage underneath the lower margins of the har. AThe lower face of late 29 is provided with a groove transverse y of bar 15 through which extendsan upper sprlng guide tongue 34. The upper faces of plates 32 and 33 are provided with aligned grooves immediately below guide tongue 34, through which extends 'a lower spring guide tongue Tongue 34 is immediately above bar 15, and tongue 35`im.- mediately below, so that sliding movement of the guage pin is unimpeded. Upper plate 29 is provided with a slot 36 extending in the longitudinal direct-ion of bar 15, and through this slot projects the end of al looking clip 37. Clip 37 consists of a cam portion 38, and an angularly disposed lever portion 39. The ends of the cam portion are extended to form bearings 40 and 41, which work in grooves as "42 inthe lower face of plate 29 at the extremities of slot 36. The carn` gportion 38 is bifurcated or interrupted as at` 43, Figure 6, so that the two portions of the cam straddle tongue 34. The arrangement of parts is such that when lever portion 39 of clip 37 is swung upwardly, cam 3S is released from pressure contact with bar 15, whereas when lever 39 brought into horizontal :position aga-inst the top ol plate 29, the cam is brought into position to securely clamp the gauge pin to the bar. As shown, gauge pins 27 and 28 are of identical structure.

T he spring end pin 44 is inount-ed on a slide 45 which is slidable in a rahbeted guideway 46 oi' bar 15, the relation ot these parts being clearly shown in Figure 5. It will be seen from this ligure that guideipin 2S rests on. both the bar and the slide, so that it may be moved relative to either, portion 45 may be moved relative to the bar and gauge pin QS, or gauge pin 2S and end pin 44 may be moved in const-ant relation relative to the bar. In order that gauge pin Q8 may not leave portion 45, the latter is n'ovided with a slot 47 and the former with a lug 48 engaging ,in the slot. The abutnient ot .lug 48 against the ends ot the slot 47, limits the relative movenient oit the two elements. 1

Preferably intermediate the gauge pins 27 and 28, disposed. a device which I shall terni a margin iinder. 'llhis device comprises a block 49 slidable along bar 15 in the saine manner as gauge pins 27 and 2S. Block 49 is provided with a d (we-tailed groove at right angles to the longitudinal axisot bar 15, and

Vin this groove is disposed a tongue having a head 51 which projects inwardly of the platen, when the tongue is in its fully retract-- ed position, to an extent exactly equal to the :inward extent ot gauge pins 27 and Q8. The lower surface of head` 51 rests directly on the tympan sheet and the tongue and guide block are provided with cooperating graduations so that when the head is in projected position, the. distance between its rear ifaee and the adjacent tace oit the guide block in ay be accurately measured.`

then the device is to be set` an impression may be taken on the tymj'ia'n sheet and, thereupon, the ba r is advanced until the torunird edge ot head 2l coincides with the type. Thereupon, head 51 is retained in this position by pressing it a ga inst the tyinpan and har is moved rearwardly until the cooperating grznluations olf' the guide block 4t) and ton gue 5() show that the desired marL n has been established 5 wl'iereupon the ends ot' the guide ba are trued up relative to the gradmrtions on members 11 and 12, and the bar locked in adjusted j iosition. "lead lil is now retracted andlower pins 27 and Q8 and end pin 44 suit-ably adj usted to receive sheet 52 in proper register. It will be noted that each, of the gangepins 27 and 28 is provided with an npper and lower guide tongue.A When using stock of ordinary thickness, the lower ton gue will be used, but when stoel; of extreme thickness is to be printed, the lower tongue will be withdrawn and the upper tongue used. Also,`

at one end et bar 15 is a constrictcd area 52, and upon removingl the lower tongues from the gauge pins and sliding the latter down to this position, their lower flanges will be rcleased i'roni engagement so that the pins may be dismounted from the bar.

From the above description, it will be seen that I have provided an extremely simple dcvice, which may be very rapidly and accurately manipulated, and which ma y be used in connection with most types ol' work. W'hile I have described my invention with retn ere-nee to particular embodiments ot the va rions features, it is to be undenatood th a tiny present disclosure is intended to be rather suggestive than restricted, since many modifications as to detail will occur to those sliil led in the art.

I claim:

1. The eon'ibination with a printing press platen, ot a gauge pin bar extending over the top thereof, said bar being laterally adjustable over the platen, a gauge pin mounted on said bar, and a margin ,tinding device on said bar, said device comprising a guide blot-kr and a tongue guided by said block for slidingI movements transversely of said bar, said block and tongue having cooperating graduations, whereby the tongue heilig held stationary, said block and. bar may he adjusted longitudinally thereo'll by measured distances to bring said gauge pin into desired working position, and means 'for securing said bar in adjusted position on the platen.

2. The combination with a printii'ig press platen, of a gauge pin ha r extending over the top thereof, said bar heilig laterally adjust able over the platen, a gauge pin mounted on said bar, and a margin finding device on said bar, said device eoniprising a guide bloei; slidable along said bar and a tongue guided by said block vtor sliding movements transversely et said bar, said block and tongue having cooperating gradini tions, whereby the longue being held stationary, said block and har may be :nljusted longitiulinally thereof by measured distanres to bringr said gauge pin into desired workingl position, and means` tor securing said bar in adjusted position on the platen.

tl. 'lhe combination with a printing press platen. ot a gauge bar extenifling over the top thereot, said har beingr laterally adjuzfilahlc over the platen. a gauge pin mounted on said ha r with its head portion pnrieeting laterally ot said bar, and a margin tindingdeviee on said bar, said device conilnfising a guido block and a tongue guided by said block for projective and retractive sliding movements transversely ot' said bar, said tone'ue having a head portion projecting laterally oi said bar in its retracted limit position a distance equal to the projection ofthe head portion ot said gauge pin and on the saine side of said bar, said block and tongue having ce lltl lill) @titl operating graduations, whereby the tongue bei ng held stationary, ,.baid block and bar may be adjusted longitudinally thereot by 1neas Vured distances to bring said gauge pin into desired working position, and means for seein-ing said bar in adjusted position on the platen.

l, The combination with a printing press platen, o t a gauge bar extending over the top thereof, said bar being laterallyT adjustable over the platen, a gauge pin mounted on said bar with its head portion projecting laterally ot said bar, and a margin linding device on sa id bar, said device comprising a guide block slidable'aloug said bar and a tongue guided by said block tor projectivi and retractive sliding movements transversely of said bar, said tongue having a head portion project.- ing laterally ot said har in its retracted limit position a distance equal to the projection ot the head portion ot said gauge pin and on the same side of said bar, said block and tongue having' cooperating graduations, whereby the tongue being held stationary, said block and bar may be adjusted longitinflinally thereof by measured distances to bring said gauge pin into desired working position, and means for securing said bar in ad justed position on the platen.

5. The combination with a printing press platei'i, ol" a gauge pin bar of strap-like Jr'orin extending trom end to eind over the Atop thereot', and guide strips on the ends ot' the platen, said guide strips being provided with downwardly open grooves along their lower portions, and portions at the endsl ot said bars projecting upwardly into said groores.

(S. The f :onibination with a printing press platen, ot a gauge pin bar extending over the to p thereof, a grange pin slidably mounted on said bar, eam means journaled in said pin above the bar for clamping the pin to Athe bar, and a lever ttor (imei-ating said cam means, said lever lying closely along the top ot the pin when the cam in clamping position.

7. The combination with a printing press platen, ot a gauge pin bar extending over the top thereof, a gauge pin in sliding engagenicnt with said bar, a tongue slidable in said pin abete said bar, and cam means journaled 1in said pin above said bar and adapted to ela inpinfrly engage the lattervsaid cam means being biturcated to straddle said tongue.

S, The conibination with a printing press platen, oit a gauge pin bar extending over the top thereof, a gauge pin in slidingr engagement with said bar, a tongue slidable in .said pin above said bar, and a tongue slidable in ,raid pin below said bar.

9. The combination with a printingpress platen, of a gauge pin bar extending over the top thereof, a lower gauge pin slidable on said bar, an end pin slid able on said bar, and common means for clamping the two pins to said bar.

10. The combination with a printing press platen, of a gauge pin bar extending over the top thereot', a lower gauge pin slidable on said bar, an end pin slidable on said bar, and means to loeli said lower gauge pin to the end pin and to the bar.

ll. The combination with a printing prees platen, ot' a gauge pin bar c ttending over `the top thereof, a lower gauge pin slidable on said bar, an cud pin slidable on said bar, and means connecting the pins whereby when one of the pins is moved along the bar the other pin is carried therewith.

12. The combination with a printingr press platen, ot' a gauge pin bar extending over the top thereof, a lower gauge pin slidable on said bar, an end pin slidable on said bar, and a lost motion connection between the pins whereby when one oi them moved along the bar the other is carried therewith.

13. The combination with a printing press platen, ot a gauge pin bar extending over the top thereot, a lower gauge pin slidablo on said bar. an end pin slidable on said bar, a lost motion connection between the pins whereby when one ot' them is moved along the bar the other is carried therewith, and means to lot-l; the two pins to said bar in *ariably spaced relation to each other.

14. The Combination with a printing press platen, ot' a gauge pin bar extending over the top thereof, a lower gauge pin slidahle on said bar, an end pin slidable on said bar, a lost motion connection between the pins whereby when one of them is moved along the bar the other is carried therewith, and connnon means to lock the two pins to said bar in variably spaced relation to each other.

l5. The combination with a printing press platen, ot a gauge pin bar extending over the top thereof, an end gauge pin having a portion extending a distance along said bar and slidable longitiulimilly thereof, a lower gauge pin mounted to slide along said bar and along said portion ot' said end gauge pin a limited dist-ance, and means to lock the lower pin and said portion of the end gauge pin to the bar.

16. The combination with a printing press platen, of agauge pin bar extending over the top thereof, an end gauge pin haring a portion extending a distance along the said bar and slidable longitudinallyy thereof, said bar being rahbeteifl to form a guide for said portion, a lower gauge pin mounted to slide along said bar and along said portion of said end gauge pin a limited distance, and means to lock the lower pin and said portion of the end ga nge pin, to the bar.

17. The combination with a printingr press platen, ot a gauge pin extendingr over the top thereof, an end gauge pin having a portion extendingr a distance along said bar and slid able longitudinally thereof, a lower gauge pin mounted to slide along said bar and along said portion of' said end gauge pin, a pin and slot connection between said lower gauge pin and said portion to limit relative movement olf the two, and means to clamp together in eontaet relation the lower gauge pin, said portion of the end gauge pin and said har.

18. The Combination with a printing press platen, of a gauge pin bar extending over the top thereof, and a gauge pin mounted to slide along the top ol" szl'itl har and having langes 1U engaging the bottom lateral margins of said bar, (l bar having a. restricted portion adapted to free said flanges to permit removal of said gauge pin.

In testimony whereof I have hereunto set l5 my hand.

CHARLES H. ALLAN. 

